Custom Sports Bra Manufacturer Checklist
Short answer: compare sports bra manufacturers by how they translate an intended activity into underband, strap, neckline, cup, fabric and size decisions—and how they prove those decisions in movement tests. A low price does not answer whether the sample will provide the intended coverage, comfort or support.
Define Support Before Asking for a Quote
“Sports bra” is not one technical brief. Tell the supplier whether the garment is for yoga, studio work, training or another use, and describe the intended support and coverage in plain language. This page covers the bra itself; use the Custom Sports Bra Manufacturer page for the product route and the Private Label Activewear Guide for a broader collection.
Manufacturer Comparison Checklist
| Question | Strong evidence | Risk signal |
|---|---|---|
| How is support translated into construction? | The supplier discusses underband, straps, neckline, back, cup and fabric together. | Support is promised from a fabric name or product photo alone. |
| How is fit approved? | Finished measurements, fit notes and movement results are recorded by sample revision. | The only approval is “looks good” in a flat photo. |
| How are cups handled? | Cup type, pocket, opening, placement and appearance after movement are specified. | “Removable pads” appears in the quote without a cup reference or pocket details. |
| How is bulk compared? | An approved sample, BOM, color, measurements and branding proof form one standard. | Production starts while details remain spread across chat messages. |
Underband, Straps and Coverage
| Underband | State finished circumference, height, elastic or self-fabric construction and seam position. Check riding up, pressure and recovery after movement. |
|---|---|
| Straps | Record width, length, attachment, adjustability if used and intended tension. Check slipping, digging and distortion. |
| Neckline and armholes | Confirm coverage and edge behavior through reaching, bending and rotation. |
| Back construction | Specify racerback, cross-back or other layout with strap junctions and seam placement shown in the technical drawing. |
Cup and Lining Approval
If the design uses removable cups, approve the cup and pocket as separate components. Record cup shape, size, thickness, insertion direction and pocket opening. Move in the sample, then check whether the cups shift, fold, show through or become difficult to reposition.
For fixed cups, bonded areas or multi-layer linings, ask for the construction to be shown in the sample notes. Do not claim a support rating until the complete garment has been reviewed for the intended use.
Movement Test by Intended Use
| Test | What to observe |
|---|---|
| Overhead reach | Underband movement, strap tension, neckline coverage and armhole comfort. |
| Forward bend and rotation | Coverage, gaping, edge stability and whether cups remain correctly placed. |
| Repeated arm movement | Strap movement, seam irritation and fabric recovery. |
| Activity-specific motion | Use motions that match the intended product brief; record the size and tester notes. |
Size Set and Grading Questions
- Which size is the base pattern, and which sizes will be physically reviewed?
- How do underband, neckline, cup coverage and strap placement change across sizes?
- Are pads or cups the same component across every size, or are they size-matched?
- Does the intended support and coverage remain consistent at representative ends of the size range?
- Where are fit comments and approved corrections recorded?
Sample-to-Bulk QC Gate
| Before sample approval | Measurements, movement notes, cup placement, fabric and color, seam comfort, logo and labels recorded. |
|---|---|
| Before bulk | Current tech pack, BOM, approved sample and branding proof carry the same revision. |
| During production | Check critical measurements and construction points against the approved standard. |
| Before shipment | Review appearance, size labeling, cup/pad inclusion, packaging and agreed comparison checks. |
What to Put in the RFQ
- Intended activity, support and coverage level.
- Front/back reference or technical drawing.
- Size range and finished measurements if available.
- Underband, strap, neckline, back and cup requirements.
- Fabric and lining direction, colors, logo, labels and packaging.
- Request for a 2 pcs sample, test batch or production quote.
Frequently Asked Questions
What should a sports bra sample test include?
Test the underband, straps, neckline and armholes through the intended movements, then record fit, support, coverage, pressure points, fabric recovery and any pad movement.
How should removable cups be approved?
Approve the cup shape, size, thickness, pocket opening, insertion direction, placement after movement and appearance under the outer fabric.
What information should a sports bra RFQ include?
State the intended activity and support level, reference design, size range, construction, cup requirement, fabric direction, branding, colors, packaging and sample quantity.
Related Guides
Prepare a sports bra sample brief
Send the intended activity, support, size range, construction, cup, fabric and branding requirements through the RFQ form, or contact us by WhatsApp or email.